National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Hyannis, Barnstable Municipal-Boardman Airport (KHYA)

Lat: 41.67°NLon: 70.27°WElev: 49ft.

Overcast

32°F

0°C

Humidity 79%
Wind Speed N 3 mph
Barometer 30.15 in (1021.1 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Last update 16 Feb 9:56 pm EST
Extended Forecast for

South Dennis MA

  • Tonight

    Tonight: Mostly cloudy, with a low around 29. North wind 3 to 6 mph.

    Low: 29 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Patchy flurries and freezing rain between noon and 2pm. Cloudy, with a high near 35. Calm wind becoming south 5 to 9 mph in the morning. Chance of precipitation is 30%.

    High: 35 °F

    Cloudy then
    Patchy Wintry
    Mix

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 29. West wind around 7 mph.

    Low: 29 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A slight chance of snow before 11am, then rain likely. Cloudy, with a high near 37. West wind around 6 mph becoming calm in the afternoon. Chance of precipitation is 70%. Little or no snow accumulation expected.

    High: 37 °F

    Slight Chance
    Rain/Snow
    then Rain
    Likely

  • Wednesday Night

    Wednesday Night: Rain and snow likely, becoming all snow after 10pm. Cloudy, with a low around 27. Calm wind becoming north around 6 mph after midnight. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

    Low: 27 °F

    Rain/Snow
    Likely then
    Chance Snow

  • Thursday

    Thursday: Mostly sunny, with a high near 35. North wind 3 to 8 mph.

    High: 35 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 27. Calm wind.

    Low: 27 °F

    Partly Cloudy

  • Friday

    Friday: A chance of snow before 1pm, then snow likely, possibly mixed with rain. Mostly cloudy, with a high near 37. East wind 3 to 8 mph. Chance of precipitation is 60%.

    High: 37 °F

    Chance Snow
    then
    Rain/Snow
    Likely

  • Friday Night

    Friday Night: Rain and snow likely, becoming all snow after 10pm. Cloudy, with a low around 28. East wind around 7 mph. Chance of precipitation is 70%.

    Low: 28 °F

    Rain/Snow
    Likely then
    Snow Likely

Detailed Forecast

Tonight
Mostly cloudy, with a low around 29. North wind 3 to 6 mph.
Tuesday
Patchy flurries and freezing rain between noon and 2pm. Cloudy, with a high near 35. Calm wind becoming south 5 to 9 mph in the morning. Chance of precipitation is 30%.
Tuesday Night
Mostly cloudy, with a low around 29. West wind around 7 mph.
Wednesday
A slight chance of snow before 11am, then rain likely. Cloudy, with a high near 37. West wind around 6 mph becoming calm in the afternoon. Chance of precipitation is 70%. Little or no snow accumulation expected.
Wednesday Night
Rain and snow likely, becoming all snow after 10pm. Cloudy, with a low around 27. Calm wind becoming north around 6 mph after midnight. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
Thursday
Mostly sunny, with a high near 35. North wind 3 to 8 mph.
Thursday Night
Partly cloudy, with a low around 27. Calm wind.
Friday
A chance of snow before 1pm, then snow likely, possibly mixed with rain. Mostly cloudy, with a high near 37. East wind 3 to 8 mph. Chance of precipitation is 60%.
Friday Night
Rain and snow likely, becoming all snow after 10pm. Cloudy, with a low around 28. East wind around 7 mph. Chance of precipitation is 70%.
Saturday
A chance of snow before 10am, then a chance of rain and snow. Mostly cloudy, with a high near 36. Northeast wind 6 to 9 mph. Chance of precipitation is 40%.
Saturday Night
A chance of snow. Mostly cloudy, with a low around 26. North wind around 6 mph. Chance of precipitation is 30%.
Sunday
A chance of snow. Mostly cloudy, with a high near 35. North wind 6 to 8 mph. Chance of precipitation is 30%.
Sunday Night
A chance of snow. Mostly cloudy, with a low around 26. Northeast wind around 7 mph. Chance of precipitation is 40%.
Monday
A chance of rain and snow. Partly sunny, with a high near 35. East wind 8 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
South Dennis MA
 41.69°N 70.16°W (Elev. 7 ft)
Last Update:
1:35 pm EST Feb 16, 2026
Forecast Valid:
10pm EST Feb 16, 2026-6pm EST Feb 23, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation